back out

动词 back out:

1. move out of a space backwards
2. make a retreat from an earlier commitment or activity
   同义词：retreat, pull back, back away, crawfish, crawfish out, pull in one's horns, withdraw

1. He back out of the garage.
   他把车倒出车库。
2. The bank back out of the contract.
   银行终止该项合同。
3. I hope I can depend on you not to back out at the last moment.
   我希望你绝对不会在最后的时刻变卦。